RESOLUTION: https://forum.faforever.com/topic/8815/new-patch-unexpected-issue

Finally in a game lobby

I dont understand russian but im pretty sure this is your fix: https://forum.faforever.com/topic/8815/new-patch-unexpected-issue

Hey all, I started receiving this error today. Every time I try to host or join a game, it gets stuck downloading env.nx2 super slow then provides the following error:

Client Version: 2025.1.0
java.util.concurrent.CompletionException: java.lang.RuntimeException: Checksums did not match for https://content.faforever.com/legacy-featured-mod-files/updates_faf_files/env.3818.nx2. Expected 1aa32b4796a92183f8602882d4e906b6 got 24c209995afa7aa8970b181818cecd92
	at com.faforever.client.patch.GameUpdaterImpl.lambda$update$5(GameUpdaterImpl.java:95)
	at java.base/java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:990)
	at java.base/java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:974)
	at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
	at java.base/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2194)
	at com.faforever.client.task.CompletableTask.lambda$new$1(CompletableTask.java:19)
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.concurrent.EventHelper.fireEvent(EventHelper.java:219)
	at javafx.concurrent.Task.fireEvent(Task.java:1332)
	at javafx.concurrent.Task.setState(Task.java:709)
	at javafx.concurrent.Task$TaskCallable.lambda$call$2(Task.java:1429)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:456)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:455)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.RuntimeException: Checksums did not match for https://content.faforever.com/legacy-featured-mod-files/updates_faf_files/env.3818.nx2. Expected 1aa32b4796a92183f8602882d4e906b6 got 24c209995afa7aa8970b181818cecd92
	at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.lambda$call$0(SimpleHttpFeaturedModUpdaterTask.java:107)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.call(SimpleHttpFeaturedModUpdaterTask.java:83)
	at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.call(SimpleHttpFeaturedModUpdaterTask.java:31)
	at javafx.concurrent.Task$TaskCallable.call(Task.java:1399)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	... 1 more
Caused by: Checksums did not match for https://content.faforever.com/legacy-featured-mod-files/updates_faf_files/env.3818.nx2. Expected 1aa32b4796a92183f8602882d4e906b6 got 24c209995afa7aa8970b181818cecd92
	at com.faforever.client.io.DownloadService.downloadFile(DownloadService.java:61)
	at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.downloadFeaturedModFile(SimpleHttpFeaturedModUpdaterTask.java:167)
	at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.lambda$call$0(SimpleHttpFeaturedModUpdaterTask.java:99)
	... 8 more

Fixes i've attempted:

• Deleting the env.nx2 file in C:\Program Data\FAForever\Gamedata

• Installing latest version of java

• Updating the FAF client with most recent version download from the site

• Fully uninstalling and reinstalling the FAF client

Any advice is greatly appreciated!